I was surprised to see this HRRR forecast model prediction of tonight’s Northeast snow showing no snow for Harrisburg and York, PA, and showing the axis of heaviest snow (4-8″) over or west of State College, PA. This disagreed with overnight AccuWeather and NWS forecasts that showed it further east. This storm will be a good test of last minute “nowcasting” by the new higher-resolution models that we have access to this winter season. I thought I’d “crowdsource” this forecast on the WeatherMatrix Facebook page so my readers could weigh in.

. . . . . . .

This is an example of how Social Media is revolutionizing weather forecasting, something I’ll be writing about in WeatherWise magazine‘s Jan-Feb. 2012 issue, and it’s not at all unseen here at AccuWeather — when our company was started 50 years ago, our founder Joel Myers noted that the average consensus forecast of his entire meteorology class would always beat the best daily forecasters – which is why we have a twice-daily map discussion here at HQ to get all of the meteorologists on the same page – an internal crowdsourcing if you will.